For Sale, Aluminum Hub for hexagon beam. Here is spec: 0.25 thickness aluminum hexagon shape plate -(each size is 6" long) with holes. Zinc plated u-bolts (12 pc.) with Stainless steel nuts(24 pc.) and toot lock washer(24 pc) to fit 1" tube elements.  On the center of hexagon plate is hole size OD 1.75" and hardware with u-bolts (2 pc.) to fit on 1.75 antenna mast.

Plate Weight is 4lb.